Medicare Advantage in Houston County, Tennessee
1,063 people in Houston County, Tennessee were enrolled in Medicare Advantage in October 2026, 51.3% of 2,073 eligible beneficiaries (−0.3 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 31% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 2,067 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 234 members here are in plans that terminate or leave the county, and Centene Corporation leaves. MA plans offered go from 36 to 33.
Parent organizations in Houston County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 317 | −17 | 30.9% |
| Humana Inc. | 217 | +16 | 21.2% |
| BlueCross BlueShield of Tennessee | 212 | +8 | 20.7% |
| Health Care Service Corporation | 123 | +8 | 12.0% |
| Elevance Health, Inc. | 91 | −11 | 8.9% |
| Centene Corporation | 33 | −6 | 3.2% |
| BrightSpring Health Services, Inc. | 22 | +3 | 2.1% |
| Devoted Health, Inc. | 11 | new | 1.1% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 569 beneficiaries in Houston County were assigned to 21 Medicare Shared Savings Program ACOs, 71.1% of assignable Original Medicare beneficiaries. Together, roughly 86% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.